Abstract
The aim of this study was to assess the nocebo effect in all randomised controlled trials (RCTs) exploring the effect of antiepileptic drugs (AEDs) in the clinical conditions in which these compounds have been studied with the exception of epilepsy. We searched for all double-blind, placebo-controlled trials performed in adult patients, testing AEDs in any clinical condition except epilepsy. The following data were extracted from the placebo arms: the number of randomized patients, the number of patients withdrawing because of adverse effects (AEs), and the number of patients with 11 predefined AEs (dizziness, ataxia/coordination abnormal, diplopia, somnolence, fatigue, headache, memory impairment, tremor, abnormal thinking, anxiety and depression). Outcome measures were the percentages of patients whithdrawing due to AEs and reporting the selected AEs. RCTs included in the analysis were grouped in six main categories of clinical conditions (pain, movement disorders, psychiatric disorders, substance abuse, obesity and binge eating disorders, and miscellanea). Proportions of patients with 95 % confidence intervals (CIs) have been calculated for all reported outcome measures. Thirteen AEDs were studied and the total number of sel...Continue Reading
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